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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 522 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

NameDateTime takenScore ___ / 40
  1. 1.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does blue stand for?
  6. 6.🌈 In the resistor colour code, which number does white stand for?
  7. 7.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  8. 8.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  9. 9.🌈 In the resistor colour code, which number does grey stand for?
  10. 10.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does violet stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) red-orange-black (b) brown-orange-black (c) brown-orange-brown (d) orange-brown-black
  13. 13.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  14. 14.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  15. 15.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) orange-brown-black (b) yellow-brown-black (c) brown-orange-black (d) orange-brown-brown
  20. 20.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does brown stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) violet-blue-brown (b) blue-black-black (c) blue-black-brown (d) blue-black-red
  23. 23.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does yellow stand for?
  27. 27.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) green-white-brown (b) green-white-red (c) white-green-brown (d) green-white-black
  30. 30.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does orange stand for?
  35. 35.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 23000
  2. 170
  3. 2
  4. 65
  5. 6
  6. 9
  7. 110
  8. the one nearest an end
  9. 8
  10. 10000
  11. 7
  12. brown-orange-black
  13. 810
  14. 5 %
  15. 96
  16. 790
  17. 85
  18. 21000
  19. orange-brown-black
  20. 7700
  21. 1
  22. blue-black-brown
  23. 56000
  24. 12
  25. 46000
  26. 4
  27. 690
  28. 430
  29. green-white-brown
  30. 120
  31. 260
  32. 14
  33. 510
  34. 3
  35. 86000
  36. 920
  37. 680
  38. 3800
  39. 4.3
  40. 160

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